ECN Forum Forums Code Related Discussion NEC & other Code issues Wiring a barn 230 feet from panel

I would recommend using a metallic 90 at the pulling end to avoid the possibility of burn through, especially if you do ever pull into this raceway again. Just make sure the 90 has 18" of cover, (see 250.80) or stay with metal conduit to the panel or disconnect and use the proper bonding to the conduit.

Roger

Roger, using a metal 90 is a good idea! It is simply amazing how a wrap of tape eliminates corrosion problems, isn't it?

Winnie, I did not think "service entrance" as I tend to asociate "service" with "meter." This is, to be fair, a situation where the code can be read several different ways.

Bob, as far as the NEC is concerned, you're correct. However, where I am, the fire department likes the disconnect to be on the outside- for easy access. If it is not, then you're likely to need a 'shunt trip' arrangement. But I admit, it comes down to local rules.
I do like the panel inside; that's where the circuits will be, and I like it to be easy to run them. In other words, just one pipe coming through the wall- not everal small ones. It is a design preference.

Steve, I see that most of this you already know. I was a little detailed in my comments, since there are many reading this who don't have your background.

Bob, I'm glad you grabbed the yoke to strear this back to the indended destination, kudo's.

Winnie, notice the words "bonded to the grounding system in both buildings" when you speak of "metalic paths". If the phone, LAN or fence is not bonded to the system at both ends it is not a metalic path.

Learn something new...

Ya know, the 'no continuous metallic paths' stuck in my head, but the 'bonded to the grounding system' did not.

I'd argue that the fence _should_ be bonded, otherwise your setting yourself up for 'stray voltage', but I don't think that an external metallic structure is _required_ to be bonded by any code. Lots of LAN systems don't require a ground.

I guess metallic piping is the real killer here; everything else can have a pretty easy work-around.

Thanks for the correction!

-Jon

"Metal pipe"?
I have heard of this thing.

It was something they used to use back in the olden days, wasn't it?